Employee Stock Plans (Stock Option and RSU Transactions) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 30, 2014
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, September 29, 2013, Stock Options	22.0
Granted, Stock Options	3.0
Options exercised, Stock Options	(3.2)
Forfeited/expired, Stock Options	(0.3)
Options outstanding, March 30, 2014, Stock Options	21.5
Total unrecognized stock-based compensation expense, net of estimated forfeitures, as of March 30,2014, Stock Options	$ 51.9
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested RSUs, September 29, 2013, RSUs	5.8
Granted, RSUs	2.4
RSUs vested, RSUs	(2.5)
Forfeited/expired, RSUs	(0.4)
Nonvested RSUs, March 30, 2014, RSUs	5.3
Total unrecognized stock-based compensation expense, net of estimated forfeitures, as of March 30,2014, RSUs	$ 153.0